/*
 * Copyright (c) 2001, David N. Main, All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or
 * without modification, are permitted provided that the
 * following conditions are met:
 *
 * 1. Redistributions of source code must retain the above
 * copyright notice, this list of conditions and the following
 * disclaimer.
 *
 * 2. Redistributions in binary form must reproduce the above
 * copyright notice, this list of conditions and the following
 * disclaimer in the documentation and/or other materials
 * provided with the distribution.
 *
 * 3. The name of the author may not be used to endorse or
 * promote products derived from this software without specific
 * prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY
 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
 * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
 * AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
 * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

package com.anotherbigidea.flash.movie;

import com.anotherbigidea.flash.SWFConstants;
import com.anotherbigidea.flash.structs.Matrix;


/**
 * A Transformation matrix that has translation coordinates in pixels
 */
public class Transform extends Matrix {
    /**
     * Copy an existing matrix
     */
    public Transform(Matrix matrix) {
        super(matrix);
    }

    /**
     * An identity transform
     */
    public Transform() {
    }

    /**
     * A transform that only translates
     */
    public Transform(double translateX, double translateY) {
        super(translateX, translateY);
    }

    /**
     * A transform that rotates and translates
     */
    public Transform(double radians, double translateX, double translateY) {
        this(radians, 1.0, 1.0, translateX, translateY);
    }

    /**
     * A transform that scales and translates
     */
    public Transform(double scaleX, double scaleY, double translateX, double translateY) {
        super(scaleX, scaleY, 0.0, 0.0, translateX, translateY);
    }

    /**
     * A transform that rotates, scales and translates
     */
    public Transform(double radians, double scaleX, double scaleY, double translateX, double translateY) {
        super(scaleX * Math.cos(radians), scaleY * Math.cos(radians), Math.sin(radians), -Math.sin(radians), translateX, translateY);
    }

    /**
     * Specify all the matrix components
     */
    public Transform(double scaleX, double scaleY, double skew0, double skew1, double translateX, double translateY) {
        super(scaleX, scaleY, skew0, skew1, translateX, translateY);
    }

    public double getTranslateX() {
        return translateX / SWFConstants.TWIPS;
    }

    public double getTranslateY() {
        return translateY / SWFConstants.TWIPS;
    }

    public void setTranslateX(double translateX) {
        this.translateX = translateX * SWFConstants.TWIPS;
    }

    public void setTranslateY(double translateY) {
        this.translateY = translateY * SWFConstants.TWIPS;
    }
}
